I was just replaying the game today and couldn't shake this feeling after investigating the corpse of the working class woman's husband.
Why is Kim so dismissive of the possibility that the man was shoved while drunk? Usually Kim is willing to explore all avenues but he seems to very quickly write this death off as an "accident" related to drinking. Almost as if he is trying to stifle any further investigation. He even cuts Harry off when calling into the station to report the body to be sure no further field autopsy is completed.
The force required to crack a skull like that isn't generated during a typical slip and fall incident. It seems more likely that someone stalked the man after seeing him drunk and pounced when he was at his most vulnerable point. Kim has the training and ability to tail a potential victim and stage the crime scene so that it looks like an accident.
The timing makes sense. At the point you find the body Kim has been in Martinaise for long enough and Harry was completely out after his bender during the exact time the "accident" took place. Even if the body is discovered later than day 3 Kim could have easily done it. Harry is able to participate in mischief after Kim goes to sleep, who says Kim isn't able to committ murder while Harry is arguing with Mr. Limbic and Reptile Brain? Naive fools, that's who.
Finally, Kim lets it slip that he has seen this before multiple times. Really Kim? How often does this specific incident happen. He doesn't say that sometimes it's acute poisoning. He says he's seen this exact situation multiple times. I think this is an unintentional admission that Kim is a sequence killer who has been stalking the ultra drunks of Revachol, waiting until they are too intoxicated to notice his approach and then pushes them with such force they crack their skulls and die. If he fails to kill them the drunks are so far gone they can't even remember what happened, let alone identify Kim as the assailant. And to top it all off when the body finally is found, Kim comes, investigates the crime scene, and finds no foul play. It's the perfect crime with the perfect cover up.
Sorry to break this to all the fans of Kim Kitsuragi. All signs point to Kim being a brutal serial killer of drunks. Kim's five steps ahead playing 27D chess while everyone else is playing tic tac toe and trying to find their gun.
Harry better watch his back before he ends up having an "unfortunate" fall.
